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| <pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing,<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * software distributed under the License is distributed on an<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * KIND, either express or implied. See the License for the<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * specific language governing permissions and limitations<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> * under the License.<a name="line.17"></a> |
| <span class="sourceLineNo">018</span> */<a name="line.18"></a> |
| <span class="sourceLineNo">019</span>package org.apache.felix.ipojo.handlers.dependency;<a name="line.19"></a> |
| <span class="sourceLineNo">020</span><a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.util.Collection;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.util.Iterator;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.List;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.ListIterator;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.Set;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span><a name="line.26"></a> |
| <span class="sourceLineNo">027</span>/**<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>* Maintains a service object collection.<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>* This collection wrap the temporal dependency to be accessible from a<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>* {@link Collection}, that can be passed to helper objects (Collaborators).<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>* <a name="line.31"></a> |
| <span class="sourceLineNo">032</span>* <a name="line.32"></a> |
| <span class="sourceLineNo">033</span>* The {@link Collection#iterator()} method returns an {@link Iterator} iterating<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>* on a cached copy of available service objects. In the case that there are no <a name="line.34"></a> |
| <span class="sourceLineNo">035</span>* available services, the policies act as follows:<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>* <ul><a name="line.36"></a> |
| <span class="sourceLineNo">037</span>* <li>'null' returns a null iterator</li><a name="line.37"></a> |
| <span class="sourceLineNo">038</span>* <li>'nullable' and default-implementation returns an iterator iterating on one object (the<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>* nullable or default-implementation object</li><a name="line.39"></a> |
| <span class="sourceLineNo">040</span>* <li>'empty' returns an empty iterator.</li><a name="line.40"></a> |
| <span class="sourceLineNo">041</span>* </ul><a name="line.41"></a> |
| <span class="sourceLineNo">042</span>* @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a><a name="line.42"></a> |
| <span class="sourceLineNo">043</span>*/<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>public class ServiceCollection implements Collection, List, Set {<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> <a name="line.45"></a> |
| <span class="sourceLineNo">046</span> /**<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> * The wrapped dependency.<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> */<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> private Dependency m_dependency;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> <a name="line.50"></a> |
| <span class="sourceLineNo">051</span> /**<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> * Creates a Service Collection.<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> * @param dep the wrapped dependency<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> */<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> public ServiceCollection(Dependency dep) {<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> m_dependency = dep;<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> }<a name="line.57"></a> |
| <span class="sourceLineNo">058</span><a name="line.58"></a> |
| <span class="sourceLineNo">059</span> /**<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> * Unsupported method.<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> * @param o an object<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> * @return N/A<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> * @see java.util.Collection#add(java.lang.Object)<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> */<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> public boolean add(Object o) {<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> throw new UnsupportedOperationException("Cannot add elements inside this collection");<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> }<a name="line.67"></a> |
| <span class="sourceLineNo">068</span><a name="line.68"></a> |
| <span class="sourceLineNo">069</span> /**<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> * Unsupported method.<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> * @param c an object<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> * @return N/A<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> * @see java.util.Collection#addAll(java.util.Collection)<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> */<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> public boolean addAll(Collection c) {<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> throw new UnsupportedOperationException("Cannot add elements inside this collection");<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> }<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> <a name="line.78"></a> |
| <span class="sourceLineNo">079</span> /**<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> * Unsupported method.<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> * @param index an index<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> * @param obj an object<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> * @see java.util.List#add(int, java.lang.Object)<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> */<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> public void add(int index, Object obj) {<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> throw new UnsupportedOperationException("Cannot add elements inside this collection");<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> }<a name="line.87"></a> |
| <span class="sourceLineNo">088</span><a name="line.88"></a> |
| <span class="sourceLineNo">089</span> /**<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> * Unsupported method.<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> * @param index an index<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> * @param c an object<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> * @return N/A<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> * @see java.util.List#addAll(int, java.util.Collection)<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> */<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> public boolean addAll(int index, Collection c) {<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> throw new UnsupportedOperationException("Cannot add elements inside this collection");<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> }<a name="line.98"></a> |
| <span class="sourceLineNo">099</span><a name="line.99"></a> |
| <span class="sourceLineNo">100</span> /**<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> * Unsupported method.<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> * @see java.util.Collection#clear()<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> */<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> public void clear() {<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> throw new UnsupportedOperationException("Cannot remove elements from this collection");<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> }<a name="line.106"></a> |
| <span class="sourceLineNo">107</span><a name="line.107"></a> |
| <span class="sourceLineNo">108</span> /**<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> * Checks if the wrapped dependency has always access to the<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> * given service object.The method allows knowing if the provider returning the<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> * service object has left. <a name="line.111"></a> |
| <span class="sourceLineNo">112</span> * @param o the service object<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> * @return <code>true</code> if the object is still available,<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> * <code>false</code> otherwise.<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> * @see java.util.Collection#contains(java.lang.Object)<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> */<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> public boolean contains(Object o) {<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> List list = (List) m_dependency.getService();<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> return list.contains(o);<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> }<a name="line.120"></a> |
| <span class="sourceLineNo">121</span><a name="line.121"></a> |
| <span class="sourceLineNo">122</span> /**<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> * Checks if the wrapped dependencies has always access to the<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> * given service objects.The method allows knowing if providers returning the<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> * service objects have left. <a name="line.125"></a> |
| <span class="sourceLineNo">126</span> * @param c the set of service object<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> * @return <code>true</code> if the objects are still available,<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> * <code>false</code> otherwise.<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> * @see java.util.Collection#contains(java.lang.Object)<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> */<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> public boolean containsAll(Collection c) {<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> List list = (List) m_dependency.getService();<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> return list.containsAll(c);<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> }<a name="line.134"></a> |
| <span class="sourceLineNo">135</span><a name="line.135"></a> |
| <span class="sourceLineNo">136</span> /**<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> * Checks if at least one provider matching with the dependency<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> * is available.<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> * @return <code>true</code> if one provider or more satisfying the<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> * dependency are available. Otherwise, returns <code>false</code> <a name="line.140"></a> |
| <span class="sourceLineNo">141</span> * @see java.util.Collection#isEmpty()<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> */<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> public boolean isEmpty() {<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> return m_dependency.getSize() == 0;<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> }<a name="line.145"></a> |
| <span class="sourceLineNo">146</span><a name="line.146"></a> |
| <span class="sourceLineNo">147</span> /**<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> * Gets an iterator on the current list of available service objects.<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> * The returned iterator iterates on a cached copy of the service<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> * objects.<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> * @return a iterator giving access to service objects.<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> * @see java.util.Collection#iterator()<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> */<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> public Iterator iterator() {<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> List obj = (List) m_dependency.getService();<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> return new ServiceIterator(obj); // Create the service iterator with the service reference list.<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> }<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> <a name="line.158"></a> |
| <span class="sourceLineNo">159</span> /**<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> * Unsupported method.<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> * @param o a object<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> * @return N/A<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> * @see java.util.Collection#remove(java.lang.Object)<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> */<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> public boolean remove(Object o) {<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> throw new UnsupportedOperationException("Cannot remove elements from this collection");<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> }<a name="line.167"></a> |
| <span class="sourceLineNo">168</span><a name="line.168"></a> |
| <span class="sourceLineNo">169</span> /**<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> * Unsupported method.<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> * @param index the index<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> * @return N/A<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> * @see java.util.Collection#remove(java.lang.Object)<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> */<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> public Object remove(int index) {<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> throw new UnsupportedOperationException("Cannot remove elements from this collection");<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> }<a name="line.177"></a> |
| <span class="sourceLineNo">178</span><a name="line.178"></a> |
| <span class="sourceLineNo">179</span> /**<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> * Unsupported method.<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> * @param c a set of objects<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> * @return N/A<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> * @see java.util.Collection#removeAll(java.util.Collection)<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> */<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> public boolean removeAll(Collection c) {<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> throw new UnsupportedOperationException("Cannot remove elements from this collection");<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> }<a name="line.187"></a> |
| <span class="sourceLineNo">188</span><a name="line.188"></a> |
| <span class="sourceLineNo">189</span> /**<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> * Unsupported method.<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> * @param c a set of objects<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> * @return N/A<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> * @see java.util.Collection#retainAll(java.util.Collection)<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> */<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> public boolean retainAll(Collection c) {<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> throw new UnsupportedOperationException("Cannot remove elements from this collection");<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> }<a name="line.197"></a> |
| <span class="sourceLineNo">198</span><a name="line.198"></a> |
| <span class="sourceLineNo">199</span> /**<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> * Gets the number of available providers.<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> * @return the number of matching service providers.<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> * @see java.util.Collection#size()<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> */<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> public int size() {<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> return m_dependency.getSize();<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> }<a name="line.206"></a> |
| <span class="sourceLineNo">207</span><a name="line.207"></a> |
| <span class="sourceLineNo">208</span> /**<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> * Returns an array containing available service objects.<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> * This method executed on timeout policies if no matching<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> * providers when the timeout is reached. <a name="line.211"></a> |
| <span class="sourceLineNo">212</span> * @return a array containing available service objects.<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> * @see java.util.Collection#toArray()<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> */<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> public Object[] toArray() {<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> return toArray(new Object[0]);<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> }<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> <a name="line.218"></a> |
| <span class="sourceLineNo">219</span> /**<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> * Returns an array containing available service objects.<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> * This method executed on timeout policies if no matching<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> * providers when the timeout is reached. <a name="line.222"></a> |
| <span class="sourceLineNo">223</span> * @param a the array into which the elements of this collection <a name="line.223"></a> |
| <span class="sourceLineNo">224</span> * are to be stored, if it is big enough; otherwise, a new array<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> * of the same runtime type is allocated for this purpose. <a name="line.225"></a> |
| <span class="sourceLineNo">226</span> * @return a array containing available service objects.<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> * @see java.util.Collection#toArray(java.lang.Object[])<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> */<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> public Object[] toArray(Object[] a) {<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> List list = (List) m_dependency.getService();<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> return list.toArray(a);<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> }<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> <a name="line.233"></a> |
| <span class="sourceLineNo">234</span> /**<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> * Gets the object stored at the given index.<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> * @param index the index<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> * @return the service object<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> * @see java.util.List#get(int)<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> */<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> public Object get(int index) {<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> List list = (List) m_dependency.getService();<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> return list.get(index);<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> }<a name="line.243"></a> |
| <span class="sourceLineNo">244</span><a name="line.244"></a> |
| <span class="sourceLineNo">245</span> /**<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> * Gets the index of the given object in the current<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> * collection.<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> * @param o the object <a name="line.248"></a> |
| <span class="sourceLineNo">249</span> * @return the index of the object of <code>-1</code><a name="line.249"></a> |
| <span class="sourceLineNo">250</span> * if not found.<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> * @see java.util.List#indexOf(java.lang.Object)<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> */<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> public int indexOf(Object o) {<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> List list = (List) m_dependency.getService();<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> return list.indexOf(o);<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> }<a name="line.256"></a> |
| <span class="sourceLineNo">257</span><a name="line.257"></a> |
| <span class="sourceLineNo">258</span> /**<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> * Gets the last index of the given object in the current<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> * collection.<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> * @param o the object <a name="line.261"></a> |
| <span class="sourceLineNo">262</span> * @return the index of the object of <code>-1</code><a name="line.262"></a> |
| <span class="sourceLineNo">263</span> * if not found.<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> * @see java.util.List#lastIndexOf(java.lang.Object)<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> */<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> public int lastIndexOf(Object o) {<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> List list = (List) m_dependency.getService();<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> return list.lastIndexOf(o);<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> }<a name="line.269"></a> |
| <span class="sourceLineNo">270</span><a name="line.270"></a> |
| <span class="sourceLineNo">271</span> /**<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> * Gets a list iterator on the current list of available service objects.<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> * The returned iterator iterates on a cached copy of the service<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> * objects.<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> * @return a iterator giving access to service objects.<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> * @see java.util.List#listIterator()<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> */<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> public ListIterator listIterator() {<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> List obj = (List) m_dependency.getService();<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> return new ServiceIterator(obj); // Create the service iterator with the service reference list.<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> }<a name="line.281"></a> |
| <span class="sourceLineNo">282</span><a name="line.282"></a> |
| <span class="sourceLineNo">283</span> /**<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> * Unsupported Method.<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> * @param index an index<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> * @return N/A<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> * @see java.util.List#listIterator(int)<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> */<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> public ListIterator listIterator(int index) {<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> throw new UnsupportedOperationException();<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> }<a name="line.291"></a> |
| <span class="sourceLineNo">292</span><a name="line.292"></a> |
| <span class="sourceLineNo">293</span> /**<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> * Unsupported Method.<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> * @param arg0 an index<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> * @param arg1 an object<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> * @return N/A<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> * @see java.util.List#set(int, Object)<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> */<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> public Object set(int arg0, Object arg1) {<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> throw new UnsupportedOperationException("Cannot add elements inside this collection");<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> }<a name="line.302"></a> |
| <span class="sourceLineNo">303</span><a name="line.303"></a> |
| <span class="sourceLineNo">304</span> /**<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> * Returns a sublist from the current list.<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> * @param fromIndex the index of the list beginning<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> * @param toIndex the index of the list end<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> * @return the sub-list<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> * @see java.util.List#subList(int, int)<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> */<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> public List subList(int fromIndex, int toIndex) {<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> List list = (List) m_dependency.getService();<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> return list.subList(fromIndex, toIndex);<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> }<a name="line.314"></a> |
| <span class="sourceLineNo">315</span><a name="line.315"></a> |
| <span class="sourceLineNo">316</span> /**<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> * Iterator on a set of service objects.<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> * This iterator iterates on a cached copy of service objects.<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> */<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> private static final class ServiceIterator implements ListIterator {<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> <a name="line.321"></a> |
| <span class="sourceLineNo">322</span> /**<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> * Underlying iterator.<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> */<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> private ListIterator m_iterator;<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> <a name="line.326"></a> |
| <span class="sourceLineNo">327</span> /**<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> * Creates a Service Iterator iterating<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> * on the given set of providers.<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> * @param list the list of service object.<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> */<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> private ServiceIterator(List list) { <a name="line.332"></a> |
| <span class="sourceLineNo">333</span> m_iterator = list.listIterator();<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> }<a name="line.334"></a> |
| <span class="sourceLineNo">335</span><a name="line.335"></a> |
| <span class="sourceLineNo">336</span> /**<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> * Returns <code>true</code> if the iteration has <a name="line.337"></a> |
| <span class="sourceLineNo">338</span> * more service objects. <a name="line.338"></a> |
| <span class="sourceLineNo">339</span> * @return <code>true</code> if the iterator has more elements.<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> * @see java.util.Iterator#hasNext()<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> */<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> public boolean hasNext() {<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> return m_iterator.hasNext();<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> }<a name="line.344"></a> |
| <span class="sourceLineNo">345</span><a name="line.345"></a> |
| <span class="sourceLineNo">346</span> /**<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> * Returns the next service objects in the iteration. <a name="line.347"></a> |
| <span class="sourceLineNo">348</span> * @return the next service object in the iteration. <a name="line.348"></a> |
| <span class="sourceLineNo">349</span> * @see java.util.Iterator#next()<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> */<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> public Object next() {<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> return m_iterator.next();<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> }<a name="line.353"></a> |
| <span class="sourceLineNo">354</span><a name="line.354"></a> |
| <span class="sourceLineNo">355</span> /**<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> * Unsupported operation.<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> * @see java.util.Iterator#remove()<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> */<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> public void remove() {<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> throw new UnsupportedOperationException(); <a name="line.360"></a> |
| <span class="sourceLineNo">361</span> }<a name="line.361"></a> |
| <span class="sourceLineNo">362</span><a name="line.362"></a> |
| <span class="sourceLineNo">363</span> /**<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> * Unsupported operation.<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> * @param obj an object<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> * @see java.util.ListIterator#add(Object)<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> */<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> public void add(Object obj) {<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> throw new UnsupportedOperationException(); <a name="line.369"></a> |
| <span class="sourceLineNo">370</span> }<a name="line.370"></a> |
| <span class="sourceLineNo">371</span><a name="line.371"></a> |
| <span class="sourceLineNo">372</span> /**<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> * Checks if the is an element before the currently <a name="line.373"></a> |
| <span class="sourceLineNo">374</span> * pointed one.<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> * @return true if there is an element before the<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> * current one.<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> * @see java.util.ListIterator#hasPrevious()<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> */<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> public boolean hasPrevious() {<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> return m_iterator.hasPrevious();<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> }<a name="line.381"></a> |
| <span class="sourceLineNo">382</span><a name="line.382"></a> |
| <span class="sourceLineNo">383</span> /**<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> * Gets the index of the next element.<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> * @return the index of the next element.<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> * @see java.util.ListIterator#nextIndex()<a name="line.386"></a> |
| <span class="sourceLineNo">387</span> */<a name="line.387"></a> |
| <span class="sourceLineNo">388</span> public int nextIndex() {<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> return m_iterator.nextIndex();<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> }<a name="line.390"></a> |
| <span class="sourceLineNo">391</span><a name="line.391"></a> |
| <span class="sourceLineNo">392</span> <a name="line.392"></a> |
| <span class="sourceLineNo">393</span> /**<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> * Gets the previous elements.<a name="line.394"></a> |
| <span class="sourceLineNo">395</span> * @return the previous element<a name="line.395"></a> |
| <span class="sourceLineNo">396</span> * @see java.util.ListIterator#previous()<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> */<a name="line.397"></a> |
| <span class="sourceLineNo">398</span> public Object previous() {<a name="line.398"></a> |
| <span class="sourceLineNo">399</span> return m_iterator.previous();<a name="line.399"></a> |
| <span class="sourceLineNo">400</span> }<a name="line.400"></a> |
| <span class="sourceLineNo">401</span><a name="line.401"></a> |
| <span class="sourceLineNo">402</span> /**<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> * Gets the index of the previous element.<a name="line.403"></a> |
| <span class="sourceLineNo">404</span> * @return the index of the previous element.<a name="line.404"></a> |
| <span class="sourceLineNo">405</span> * @see java.util.ListIterator#previousIndex()<a name="line.405"></a> |
| <span class="sourceLineNo">406</span> */<a name="line.406"></a> |
| <span class="sourceLineNo">407</span> public int previousIndex() {<a name="line.407"></a> |
| <span class="sourceLineNo">408</span> return m_iterator.previousIndex();<a name="line.408"></a> |
| <span class="sourceLineNo">409</span> }<a name="line.409"></a> |
| <span class="sourceLineNo">410</span><a name="line.410"></a> |
| <span class="sourceLineNo">411</span> /**<a name="line.411"></a> |
| <span class="sourceLineNo">412</span> * Unsupported operation.<a name="line.412"></a> |
| <span class="sourceLineNo">413</span> * @param obj an object<a name="line.413"></a> |
| <span class="sourceLineNo">414</span> * @see java.util.ListIterator#set(Object)<a name="line.414"></a> |
| <span class="sourceLineNo">415</span> */<a name="line.415"></a> |
| <span class="sourceLineNo">416</span> public void set(Object obj) {<a name="line.416"></a> |
| <span class="sourceLineNo">417</span> throw new UnsupportedOperationException(); <a name="line.417"></a> |
| <span class="sourceLineNo">418</span> }<a name="line.418"></a> |
| <span class="sourceLineNo">419</span> <a name="line.419"></a> |
| <span class="sourceLineNo">420</span> }<a name="line.420"></a> |
| <span class="sourceLineNo">421</span><a name="line.421"></a> |
| <span class="sourceLineNo">422</span>}<a name="line.422"></a> |
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| </div> |
| </body> |
| </html> |
